//
//  Atom.m
//  1.-4-5 OC
//
//  Created by 钟纪旺 on 16/4/5.
//  Copyright © 2016年 zjw. All rights reserved.
//

#import "Atom.h"

@implementation Atom

-(id)init
{
    if ((self=[super init])) {
        
        _chemicalElement=@"None";
    }
    return self;
}
- (NSUInteger) massNumber
{
    return 0;

}



@end
